Frame front for eyeglasses permitting interchangeability of lens

Details Frame front for eyeglasses permitting interchangeability of lens Frame front for eyeglasses permitting interchangeability of lens

1982-03-09

1985-03-12

Corbin, John K.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Continuous rim mounting

351106, 351126, 351154, G02C 100, G02C 104, G02C 506

Patent

active

045041270

ABSTRACT:
There is disclosed a frame front for eyeglasses permitting interchanging of lenses without any tool. The frame front comprises a main bridge member connecting lens supports and a median bridge member extending between the lens supports but disconnected therefrom. The median bridge member has retaining notches at its opposed ends for receiving peripheral portions of the lenses and their associated lens supports. The retaining notches define an abutment position in which the lenses are retained on their supports and a limit position permitting removal of the lenses through openings formed by the notches. The lens supports are resiliently mounted by the main bridge member to permit displacement outwardly and upwardly from the abutment position to the limit position.

REFERENCES:
patent: 4176921 (1979-12-01), Matthias

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